Function oxcParse

examples/custom-javascript-parser/internals/oxc-parse.js:183–240

(sourceCode, options)

 * @returns {ParseResult} the parsed result
 */
const oxcParse = (sourceCode, options) => {
	const locationResolver = new LocationResolver(sourceCode);

	// We need only automatic semicolon insertion position, but there is no API, so let's collect all semicolons
	// But there are rooms to improve it
	/** @type {Semicolons} */
	const semicolons = options.semicolons
		? collectSemicolons(sourceCode)
		: new Set();

	const result = oxc.parseSync("file.js", sourceCode, {
		...options,
		astType: "js",
		range: true,
		sourceType: options.sourceType === "module" ? "module" : "script",
		// @ts-expect-error no types
		experimentalRawTransfer: true
	});

	const comments =
		/** @type {(Comment & { start: number, end: number, loc: SourceLocation })[]} */
		(result.comments);

	for (const comment of comments) {
		Object.defineProperty(comment, "loc", {
			get() {
				const loc = locationResolver.getLocation(comment.start, comment.end);
				return {
					start: {
						line: loc[0],
						column: loc[1]
					},
					end: {
						line: loc[2],
						column: loc[3]
					}
				};
			},
			configurable: true,
			enumerable: true
		});
		Object.defineProperty(comment, "range", {
			get() {
				return [comment.start, comment.end];
			},
			configurable: true,
			enumerable: true
		});
	}

	const ast = createLazyProxy(
		/** @type {NodeWithRange<Program>} */
		(result.program),
		locationResolver,
		new WeakMap()
	);
	return { ast, comments, semicolons };
};